Nut lock or fastener washer



June 7, 1927. 1,631,819

V Y J. w. IVORY NUT LOCK OR FASTENERWASHER Filed Oct. 11. 1922 2 Shats-$heet 1 I i llll lll l lllllll ATTORNEYS.

wofh m (MGM/(3' 1 631 819 lune 7,1927. w. IVORY NUT LOCK 0R FA'STENER. wAsHER Filed Oct. 11. 1922 2 Sheets-Sheet 2 ATTORNEYS. L

Patented June 7, 1927.

UNITED STATES PATENT times JAMES .W. IVORY, OF PHILADELPHIA, PENNSYLVANIA.

NUT max on IA STENER WASHER.

Application filed October 11, 192-2. Serial No. 593,676.

; portantinstrumentalities thereof may be varied, and so it is to be understood that the invention is not limited to the specific details shown and described, as long as they are within the spirit or scope of the claim.

Figure 1 represents a perspective view of a nut lock or fastener embodying my invention.

Figure 2represents a bottom plan view thereof.

Figure 3 represents a diametrical section thereof showing also the application and operation of the device.

Figure 1 represents aperspective view of a modification of the invention.

Figure 5 represents abottom plan view thereof.

Figure 6 represents a diametrical section thereof showing the application and operation of the device. V

Figure 7 represents a perspective view of another modification.

Figure 8 represents a bottom plan view thereof.

Figure 9 represents a diametrical section thereof showing also the application and operation of the device.

Figure 10 represents a perspective view of another modification.

Figure 11 represents a bottom plan view thereof. 1

Figures 12, 13', 15, 18, 21 and 23 represent perspective views of other modifications.

Figure 14' represents a bottom plan view of Figure 13.

Figure 16 represents a bottom plan view of Figure. 15.

Figure 17 represents a diametrical section of Figures 15 and 16 showing also the application and operation of the device.

Figure 19 represents a bottom plan view of Figure 18.

Figure 20 represents a diametrical section of Figures 18 and 19 showing alsothe application and operation of the device.

Figure 22 represents a bottom plan of the modification of Figure 21. I

Figure 24 represents a diametrical sec tion of the deviceon line 2424-Figure 23.

Figure 25 represents a top or plan view of another modification. 1 1

Figure 26 represents a diametrical section of the device on line 26-26 Figure 25.

View

*1 0t another modification. I

Figure 28 represents a section thereof on line 28-28 Figure 27.

Figure 29 represents a of the embodiment shown in Figure 12.

Figure 30 represents a modification of the embodiment shown in Figure 26,

Figure 31 represents a perspective View of a modification showing the nut seated in the fastener or lock. r

Fig. 32 is a modification of the structure disclosed in Fig. 27.

Similar numerals of reference indicate. corresponding'parts in the figures.

Referring to the drawings 1 1 designatesthe nut lock or fastener washer embodying my invention, the same being formed of a plate of suitable metal having therein the opening 2to receive the bolt 3 and the tongue 4:, it being noticed that the plate is bent on itself on one side thereof to form'said tongue which is resilient in its nature and extends from its bend 5 to a partial extent under the body of the plate and sodoes not extend under the side por tion 6 of the plate opposite to said bend, it being noticed also that the plate is bowed so as to provide for resiliency and that the outer end of the portion 6 has thereon the lip 7 which with the tongue 4 comprises the base of the device, the same being adapted to rest upon the washer 8 which is placed on the member 9 to be bolted.

On the inner edge of the tongue is the recess 10 which is in communication with the bolt-opening 2, the bolt passing through said recess. It will now be seen that when the lock or fastener is in position and the nut 11 applied to the bolt and rotated the bow of the lock or fastener is compressed downwardly or inwardly in oblique direction and it exerts upward pressure on one side of the nut, the tendency of which is to Fi ure 27 represents a top orplan-view.

bottom plan view force the nut in an oblique direction against the bolt and cause it to laterally with the threads of the latter, thus preventing unscrewing of the nut and consequently of the bolt and so providing an efiicient nut lock or fastening for the purpose.

In Figures 4, 5, and 6, the tongue a is shown foreshortened from that shown in Figures 1, 2, and 3.

In Figures 7, 8, and 9, the tongue is shown curled as-at 1 2. In Figures 12 and29 the tongue 4 has its ;inner end curved downward as at 24.

In Figures 10,, 1 1, 13 and let 'the lip is shown inturned asat 13 said lip having on its inner end the recess .14- to allow the bolt EtO pass therethrough.

'In Figures 15, 16, 1:7, (18, '19 :and 20, the lip is shown doubly :inturned as at 115 and adapted to enter the tongue 4.

In Figures-21 and 22 the tongue is shown doubly :inturned as at 16, and the lip is shown inturned as at 17 overthe top of the platetowardsithebend-5. In Figure .21 the lip has therein therecess 18 to allow the boltrto ipassitherethrough. T he rlip in Figures 23 :and .24 E1135 therein the opening 18* to allow the bolt topassatherethrough.

In Figures 25 and :26, washer 19tlS'l1'lterposed; between the top plate of the lock or fastener and the tongue l and riveteu to said plate as at 20, the same serving as a reinforce for the device.

In Figures 27 and 28,, the-device is shown as an annular plate 21 .on whose underside portion is the ;folded tongue 22 riveted thereto as at 23. This raises said portion and impart-s :an oblique direction .to the plate.

In Figure 30 the tongue 4 has its inner end curved downwardly :as :at 25.

:In Figure 31 the sides of the body of the fastener 'or look are turned up as at 26 so that the nut is seated between the same, and one of the sides is continued zdownwardly by the told 27 on the exterior thereof from the top :to the bottom thereof and its lower end is bent inwardly formingthe tongue 4.

In Figure i232 the tongue 28 is (laterally angular and formed of a piece of resilient metal or other suitable material one limb of which is .on the upper {face of the washer plate :and "riveted thereto. The other limb is below theunder face of said washer :plate and is set out therefrom thus providing resiliency for said lower limb and giving to one sideiof the washer plate. a greater thickness 'to said plate than on the other side, both limbs of the piece terminating about midway of the bolt opening. 11; will be noticed that the spring tongue or lip 41-, is

in each figure braced or supported by its contact with componentparts of the washer.

The riveting of the plate to the washer, as in Figures 25, 26, and 30 is interposed in this application as a modification in place which I show .in the other figures; the riv eting serving in place of a fold in the metal. I

Ihave found that the best forms are those that have the spring-tongue or lip 4 terminating about midway of the bolt zaperture hollowed-out to accommodate the bolt, giving to that side of the washer ante'xcess of metal, of one or two thicknesses, giving a {leaf or more-0t metal to one half of the washer so that when the .nut is screwed to the lbOlt will .under pressure properly exerted, :cause the nut to lean er (incline towards the thinner side of thewasher plate, forcing the thread-of the :nut .to wedge into the thread .of :the bolt. This togetherwith the spring tongue .or lip or leaf tof metal on :this thicker side of the washer causes a of the folded spring or tongue or lip l,

very unyielding nut look to any vibratory 3 action on a vehicle or other mechanism.

The whole idea is to give that tension to the thread and forced wedgino of the ,thread of the nut with the threadof the -bolt, that the nutwill not by any form of vibration loosen irom the thread of the ,bolt and will yield only to the superior force of a wrench or other implement 0r power or when "the nut is desired to .be .removed. It will be evident that thisspring lip or tongueof metal iwillropento its original position when force is removed.

Having thusdescribed my invention what I claim as new and desire to secure by Letters Patent, is

In combination two members arranged to be rigidly bolted together, a cylindrical bolt, the major portion of which isscrewthreaded and which screw-threads extend entirely through said members; a. washer fitted over the screw-threaded portionzofsaid bolt, a nut-lock comprising a plate having a central circular hole for insertion. vover the extended screw-threaded ,portion of said bolt, said plate having one end bent downwardly thereunder to provide a .hollow, triblike and laterally extended, resilient portion for resting upon the top of said washer, theiopposite end of said plate being flatfor free abutment .upon said washer, and .a .nut for said bolt one lower edge of Whidhnut abuts upon said rib-like, deflected, lateral, resilient portion of said plate, and the opposite lower .edge of the nut being entirely free of both the plate and washer.

JAMES lV. IVORY. 

